Oki IP-6620 Maintenance Manual page 169

<Contours of objects are blurred.>
[Symptom A]
Cause
The ink dries too (1) Decrease the temperature of all three heaters by 5°C. *1
slowly. * Before starting the print, ensure that the heater temperatures have
The ink is ejected been decreased to the target temperature.
excessively. (2) Change to a more suitable print mode, or set the carriage speed
to SLOW. *1 *2 *3
(3) Print in unidirectional mode. *2
(4) If printing in high density, print in normal density.
(5) Use proven media.
(6) With the RIP software, apply the profile with a low ink amount to
be ejected.
* Note that the hue may change if the ejected ink amount
decreases.
*1 Adjust the media advance adjustment value again.
*2 Note that the print speed differs depending on the mode selected.
*3 Be sure to adjust the bidirectional adjustment value again after changing the carriage speed.
[Symptom B]
Cause
The print heads (1) Adjust the print heads positions.
positions are (2) Adjust the bidirectional print position.
misaligned. (3) If bidirectional adjustment has been performed automatically,
The bidirectional perform it again manually.
print position is
misaligned.
5-10
Chapter 5 Troubleshooting (Engine Section and USB Controller Section)
User Solution
User Solution
OKI Data Infotech Corporation CONFIDENTIAL
Service Engineer
Inspection Replacement Part
- Install the last firmware - Firmware version
version. - PRINT HAED
- Check that the nozzles
- CAP，MW
eject ink correctly.
- WIPING UNIT,MW
- Check the carriage
height.
- Check the cap position.
- Check that ink is sucked
when performing the FILL
CAP or PH.RECOVERY
operation.
- Check the wiping unit
operation.
- Check the wiping position.
Service Engineer
Inspection Replacement Part
- Install the last firmware - Firmware version
version. - PCB-ASSY-IPB5-100
- Check the connection of - HEAD CABLE,MW
HEAD CABLE,MW - INKJET HEAD,MW
connectors on the - ROBOT CABLE,MW
HCB1M and the print - CARRIAGE FFC,MW
heads. - PCB-ASSY-HCB1M
- Check the connection of - ROBOT CABLE,MW
CARRIAGE FFC,MW
connectors on the
HCB1M and the IPB5.
- Check the connection of
ROBOT CABLE,MW
connectors.
Reference
Assumed to Check/
Replace
Parts
Reference
Assumed to Check/
Replace
Parts